A migrant holds a placard reading "Thank you Serbia" as migrants walk near Belgrade, on July 22, 2016, to protest over the closed border preventing them from entering central Europe. Some 300 migrants in Belgrade, mostly young men from Afghanistan and Pakistan, on July 22 began a hunger strike and set off on foot towards the Hungarian border in the hope of entering the European Union. / AFP / OLIVER BUNIC (Photo credit should read OLIVER BUNIC/AFP/Getty Images)
